The shear bond strength of two adhesives (Concise® and Dyna-Plus® bonding system) with one type of ceramic bracket was determined in this study. There were statistically significant differences between the bond strengths, with Concisereg; recording higher levels than Dyna-Plus®. Failure sites of Dyna-Plus® were revealed at the enamel/resin, resin/resin, and resin/bracket interfaces; that of the Concise® was mainly at the resin/bracket interface.
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